Costco can be a magical land of low-cost bulk buying, but it can also be a living nightmare overrun with hordes of bargain-hunters if you go at the wrong times. Here’s when you should shop at Costco if you want to avoid the crowd.

In this video from The Krazy Koupon Lady YouTube channel you’ll learn some great tips for shopping at Costco, including the best time to shop. The Krazy Koupon Lady suggests you hit the warehouse club between 3:00 and 5:00 p.m. on weekdays. That’s when Costco sees the lowest amount of traffic, so aisles will be clear, lines will be shorter, and there might be more free samples for you to snag.

This timing lines up with what Jon Van Guilder, a Costco manager for 28 years, recommends at Quora as well. According to Guilder, the best times are weekdays right after opening and before 11 a.m., weekdays sometime between 2:30 and 5:00 p.m., and during the last 45 minutes of any night before they close. Guilder also suggests that Tuesdays are the best day overall if you just want to get in and out, and Thursdays are the worst because they’re the start of the vendor rebate mailers.